Mark Broadbent wrote: > --- linux-2.6.7/arch/i386/kernel/apic.c (revision 1) > +++ linux-2.6.7/arch/i386/kernel/apic.c (working copy) > @@ -40,6 +40,15 @@ > > #include "io_ports.h" > > +/* > + * Debug level > + */ > +extern int apic_verbosity; > + > +/* Ensure io_apic can see this level as well */ > +EXPORT_SYMBOL(apic_verbosity); Your patch looks OK to me except for one small bit, above. First, you should put the 'extern int apic_verbosity' in a header, presumeably the same header into which you stashed APIC_{QUIET,VERBOSE,DEBUG} definitions. Second, it is highly unlikely that this symbol should be exported to kernel modules. Jeff